. Author manuscript; available in PMC: 2006 Feb 28.

Published in final edited form as: J Matern Fetal Neonatal Med. 2005 Dec;18(6):405–416. doi: 10.1080/14767050500361703

Table III.

Hazard ratio of amniotic fluid concentration of macrophage migration inhibitory factor (MIF) above the cutoff value used for the identification of intra-amniotic inflammation (≥50 cells/ml) in relation to interval from amniocentesis to delivery (hours)

Variables	Hazard ratio	95% CI	p
MIF ≥ 302 ng/ml	7.8	3.3-18.5	<0.001^*
MIAC	2.6	1.1-6.6	0.03^*
Cervical dilation (cm.)	1.4	1.2-1.7	<0.001^*
Gestational age (weeks)	1.1	1.02-1.2	0.01^*

MIAC, microbial invasion of the amniotic cavity.

Statistically significant.